They massed well-equipped troops on the frontier.他们在边境上集结了装备精良的军队。The clouds massed, whipped up by the wind...云卷云舒随风起。The clouds massed, whipped up by the wind.云卷云舒随风起。The troops and armor were massed along the border.部队...
It allows nicotine to diffuse slowly and steadily into the bloodstream.它能使尼古丁平稳缓慢地渗透到血液里。Once in the bloodstream, the bacteria adhere to the surface of the red cells.细菌一进入血液里，就附着在红细胞表面上。They injected the drug directly in...